** Shares of gene therapy developer Krystal Biotech KRYS.O
rise 13.4% to $126.26 premarket
** Co reports Q4 net product revenue of $42.14 mln from
sales of gene therapy Vyjuvek, beating analysts' estimates of
$28.61 mln - LSEG data
** Co posts smaller-than-expected Q4 loss of 30 cents per
share vs analysts' estimates of loss of 39 cents
** The U.S. FDA approved KRYS's Vyjuvek in May 2023 to treat
patients with a rare genetic skin disorder called dystrophic
epidermolysis bullosa
** As of Dec. 31, 2023 co had cash, cash equivalents and
investments totaling $594.10 mln
** Stock has risen 42.3% in the last 12 months
(Reporting by Sneha S K)
((Sneha.SK@thomsonreuters.com;))